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python/graphstorm/gconstruct/transform.py

@@ -951,6 +951,7 @@ def call(self, feats):
                 feats = feats[:, :self.truncate_dim]
             else:
                 assert isinstance(feats, ExtMemArrayWrapper)
+                # Need to convert to in-memory array to make truncation possible
                 feats = feats.to_numpy()[:, :self.truncate_dim]
         return {self.feat_name: feats}